leetcode-solutions

Grind 75

18/75 completed

Week 1

• Two Sum (Easy) - Array
• Valid Parentheses (Easy) - Stack
• Merge Two Sorted Lists (Easy) - Linked List
• Best Time to Buy and Sell Stock (Easy) - Array
• Valid Palindrome (Easy) - String
• Invert Binary Tree (Easy) - Binary Tree
• Valid Anagram (Easy) - String
• Binary Search (Easy) - Binary Search
• Flood Fill (Easy) - Graph
• Lowest Common Ancestor of a Binary Search Tree (Easy) - Binary Search Tree
• Balanced Binary Tree (Easy) - Binary Tree
• Linked List Cycle (Easy) - Linked List
• Implement Queue using Stacks (Easy) - Stack

Week 2

• First Bad Version (Easy) - Binary Search
• Ransom Note (Easy) - Hash Table
• Climbing Stairs (Easy) - Dynamic Programming
• Longest Palindrome (Easy) - String
• Reverse Linked List (Easy) - Linked List
• Majority Element (Easy) - Array
• Add Binary (Easy) - Binary
• Diameter of Binary Tree (Easy) - Binary Tree
• Middle of the Linked List (Easy) - Linked List
• Maximum Depth of Binary Tree (Easy) - Binary Tree
• Contains Duplicate (Easy) - Array
• Maximum Subarray (Medium) - Dynamic Programming